Prevalence and Severity of Specific Pneumoconiosis Lesions Among Autopsied Miners Who Worked Only Under the New Dust Regulations (n = 662) Compared With Those Who Worked Only Under the Old Dust Regulations (n = 2217), National Coal Workers' Autopsy Study, 1971-1996 (a) Pneumo- Prevalence (%) coniosis Old New Lesion Severity Regulations (b) Regulations (c) P (d) Coal Absent 17.

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.